@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700&display=swap');

        body {
            background-color: #f8fafc;
            color: #1e293b;
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
        }

        .sidebar {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: white;
            width: 280px;
            height: 100vh;
            position: fixed;
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            box-shadow: 4px 0 15px rgba(0, 0, 0, 0.1);
            z-index: 20;
            transition: transform 0.3s ease;
        }

        .sidebar.open {
            transform: translateX(0);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 2.5rem;
            font-family: 'Plus Jakarta Sans', sans-serif;
            font-weight: 700;
            font-size: 1.25rem;
        }

        .sidebar-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, #38bdf8, #8b5cf6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
        }

        .nav-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            border-radius: 8px;
            color: #94a3b8;
            font-weight: 500;
            transition: all 0.2s ease;
            margin-bottom: 0.25rem;
            text-decoration: none;
        }

        .nav-item:hover {
            background: rgba(255, 255, 255, 0.1);
            color: white;
        }

        .nav-item.active {
            background: rgba(255, 255, 255, 0.15);
            color: white;
            box-shadow: inset 3px 0 0 0 #38bdf8;
        }

        .main-content {
            margin-left: 280px;
            min-height: 100vh;
            transition: margin-left 0.3s ease;
        }

        .header {
            background: white;
            padding: 1.5rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 10;
        }

        .header-title {
            font-family: 'Plus Jakarta Sans', sans-serif;
            font-weight: 700;
            font-size: 1.25rem;
            color: #0f172a;
        }

        .card {
            background: white;
            border-radius: 12px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            border: 1px solid #e2e8f0;
            overflow: hidden;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .card:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        }

        .card-header {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid #e2e8f0;
        }

        .card-title {
            font-weight: 600;
            color: #0f172a;
            font-size: 1.125rem;
        }

        .card-body {
            padding: 1.5rem;
        }

        .settings-section {
            max-width: 800px;
            margin: 0 auto;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: #0f172a;
        }

        .form-control {
            width: 100%;
            padding: 0.625rem 0.875rem;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            background: white;
            transition: all 0.2s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: #7dd3fc;
            box-shadow: 0 0 0 3px rgba(125, 211, 252, 0.3);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-weight: 500;
            transition: all 0.2s ease;
            gap: 0.5rem;
            cursor: pointer;
            border: none;
            outline: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, #0ea5e9, #8b5cf6);
            color: white;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #0284c7, #7c3aed);
            transform: translateY(-1px);
        }

        .api-key-box {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            padding: 1rem;
            font-family: 'Fira Code', monospace;
            font-size: 0.875rem;
            color: #334155;
            position: relative;
        }

        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                position: fixed;
                z-index: 50;
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-menu-btn {
                display: block !important;
            }
        }

        .sidebar-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 40;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .sidebar-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .animate-fadeIn {
            animation: fadeIn 0.3s ease forwards;
        }

        .fa-spin {
            animation: spin 1s linear infinite;
        }
        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }